Two-dimensional optical lattices in a CO2 laser

  • D. Dangoisse
  • , D. Hennequin
  • , C. Lepers
  • , E. Louvergneaux
  • , P. Glorieux

Research output: Contribution to journalArticlepeer-review

Abstract

Using a cavity with a large Fresnel number, a nontrivial large-scale order resulting from global multimode-interaction dynamics is found in the transverse structure of a CO2 laser beam. Two-dimensional optical lattices displaying several hundred phase singularities each have been observed. The symmetry properties of these far-field patterns and their associate temporal spectra are studied as a function of two control parameters: the Fresnel number and the transverse intermode spacing.

Original languageEnglish
Pages (from-to)5955-5958
Number of pages4
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume46
Issue number9
DOIs
Publication statusPublished - 1 Jan 1992
Externally publishedYes

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